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CVE-2026-46281

In the Linux kernel, the following vulnerability has been resolved: vmalloc: fix buffer overflow in vrealloc_node_align() Commit 4c5d3365882d ("mm/vmalloc: allow to set node and align in vrealloc") added the ability to force a new allocation if the current pointer is on the wrong NUMA node, or if an alignment constraint is not met, even if the user is shrinking the allocation. On this path (need_realloc), the code allocates a new object of 'size' bytes and then memcpy()s 'old_size' bytes into
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:e269777ff4aa1218144bcf8b911d04c892929e52e9781455dd7e345bcfd2ce1a
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 2 assertions

{"defaultStatus":"affected","product":"Linux","programFiles":["mm/vmalloc.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.18"},{"lessThan":"6.18","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.27","versionType":"semver"},{"lessThanOrEqual":"7.0.*","status":"unaffected","version":"7.0.4","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.1","versionType":"original_commit_for_fix"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:ee93ad28e995d2b52beb710bf07f93d9dd26d9c4707326250ca67a885ce6e7bb · sha256:a3e435d0c6aef553… · /containers/cna/affected/1

{"defaultStatus":"unaffected","product":"Linux","programFiles":["mm/vmalloc.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"e9b057a44deff4c59c13f44672a5cc74dcd57522","status":"affected","version":"4c5d3365882dbbc0784688784904f440d7a4c0f1","versionType":"git"},{"lessThan":"b281adf71f786c325eb6d6d1582d4d05313438a8","status":"affected","version":"4c5d3365882dbbc0784688784904f440d7a4c0f1","versionType":"git"},{"lessThan":"82d1f01292d3f09bf063f829f8ab8de12b4280a1","status":"affected","version":"4c5d3365882dbbc0784688784904f440d…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:ee93ad28e995d2b52beb710bf07f93d9dd26d9c4707326250ca67a885ce6e7bb · sha256:a3e435d0c6aef553… · /containers/cna/affected/0

Affected products and versions

2 source assertions
{"defaultStatus":"affected","product":"Linux","programFiles":["mm/vmalloc.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.18"},{"lessThan":"6.18","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.27","versionType":"semver"},{"lessThanOrEqual":"7.0.*","status":"unaffected","version":"7.0.4","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.1","versionType":"original_commit_for_fix"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:ee93ad28e995d2b52beb710bf07f93d9dd26d9c4707326250ca67a885ce6e7bb · sha256:a3e435d0c6aef553… · /containers/cna/affected/1
{"defaultStatus":"unaffected","product":"Linux","programFiles":["mm/vmalloc.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"e9b057a44deff4c59c13f44672a5cc74dcd57522","status":"affected","version":"4c5d3365882dbbc0784688784904f440d7a4c0f1","versionType":"git"},{"lessThan":"b281adf71f786c325eb6d6d1582d4d05313438a8","status":"affected","version":"4c5d3365882dbbc0784688784904f440d7a4c0f1","versionType":"git"},{"lessThan":"82d1f01292d3f09bf063f829f8ab8de12b4280a1","status":"affected","version":"4c5d3365882dbbc0784688784904f440d…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:ee93ad28e995d2b52beb710bf07f93d9dd26d9c4707326250ca67a885ce6e7bb · sha256:a3e435d0c6aef553… · /containers/cna/affected/0

Source references

3 source assertions
{"url":"https://git.kernel.org/stable/c/82d1f01292d3f09bf063f829f8ab8de12b4280a1"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:ee93ad28e995d2b52beb710bf07f93d9dd26d9c4707326250ca67a885ce6e7bb · sha256:a3e435d0c6aef553… · /containers/cna/references/2
{"url":"https://git.kernel.org/stable/c/b281adf71f786c325eb6d6d1582d4d05313438a8"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:ee93ad28e995d2b52beb710bf07f93d9dd26d9c4707326250ca67a885ce6e7bb · sha256:a3e435d0c6aef553… · /containers/cna/references/1
{"url":"https://git.kernel.org/stable/c/e9b057a44deff4c59c13f44672a5cc74dcd57522"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:ee93ad28e995d2b52beb710bf07f93d9dd26d9c4707326250ca67a885ce6e7bb · sha256:a3e435d0c6aef553… · /containers/cna/references/0

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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